The propagation of electromagnetic waves in a given material are governed by two complex quantities characteristic of that material: the permittivity ε, and the permeability μ. These two quantities ...

Refraction-contrast computed tomography (RCT) using a refractive angle analyzer of Si perfect crystal can reconstruct the three-dimensional structure of biological soft tissue with contrast comparable ...

Please provide your email address to receive an email when new articles are posted on . Refractive surgery planning needs a paradigm shift to a more prospective approach. Simulation software designed ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...